When will Yang Lake freeze in winter?

Every year, Namco begins to thaw in early May, and Yanghu is not frozen all year round, not only ice, but also a thin layer in a small area. A pupil asked:

1, Namco is located in Naqu area, with high altitude and low temperature all year round.

2. From the chemical point of view, the freezing state is different with different salinity. For example, the glass water we use for driving in winter is one reason why the water we add will freeze and the glass water we add will not freeze.

Similarly, the salinity of seawater has a great influence on the freezing and melting of seawater. Except for the south and north poles, the sea water temperature is low and rarely freezes, and the ship has been sailing. Hundreds of millions of years ago, the Qinghai-Tibet Plateau was still an ocean. Later, with the uplift of the Qinghai-Tibet Plateau, the seawater retreated to the Indian Ocean, and many dammed lakes were formed on the Qinghai-Tibet Plateau. Many sacred lakes are saltwater lakes. The freezing of lake water is closely related to the salinity of water, and the low temperature is only one of the reasons.